Haines: American male sprinter. 1967 broke and tied the men's world records of 100 yards (1 yard =0.9 144 meters) and 100 meters in 9 seconds and 0/0 seconds respectively. 1968 broke the record of 100 meter run 10 second in 9.9 seconds, setting a world record at that time.

At the19th Olympic Games in the same year, Heinz once again tied the men's 100 meter world record in 9.9 seconds and won the gold medal. In this Olympic Games, he won the men's 4× 100 meter relay in 38.2 seconds and broke the world record.

Extended data

100 meter sprint is the shortest race in track and field, also known as "the race to challenge the speed limit of human beings". At the end of 20 15, the world record of men's 100 meter sprint was 9.58 seconds set by Bolt at the 2009 Berlin Athletics Championships.

Its sports characteristics are: people run the specified distance on the determined runway at the fastest speed at the same time, and the first runner wins; In terms of functional energy supply, it shows that the human body gives full play to human instinct and supplies energy through anaerobic metabolism.

20 17 On August 4th, after the World Athletics Championships, Bolt circled the 400-meter track in the Olympic Stadium and officially announced his retirement.

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